Security Attacks and Key Challenges in Blockchain Technology: A survey

A blockchain is a decentralized, distributed, and open ledger that is used to record transactions across several computer clusters. Without a change in subsequent blocks, the record cannot be changed. Blockchain is a well-known phrase in the IT industry. There are several issues with Blockchain technology that need to be taken into account, despite the fact that it has many applications in the fields of information technology, banking, and other industries. In this paper, we discussed the major challenges and issues associated with Blockchain technology